For each star, determine how its light would be shifted. Not all choices may be used, and some may be used more than once. A blue giant moving away from Earth at 39.9 km/s A yellow dwarf moving transversely at 16.3 km/s A red giant moving towards Earth at 22.7 km/s A blue dwarf moving away from Earth at 37.9 km/s A blue giant moving transversely at 30.1 km/s

Explanation:

To solve this problem we have to consider the general red shift equation

z=red shift

v=speed of the object

c=speed of light

θ=angle between earth and relative motion of the object

- For objects moving away θ=0 and for relative transverse motion θ=90°. Hence we have for both class of motion

a)

for the blue giant

b)

for the yellow dwarf

c)

and in the same way for the red giant (but with an angle of 180°)

z = -7.56*10^{-5}

e)

and for the blue dwarf

z = 7.98*10^{-9}

I hope this is useful for you

regards!!

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

there are no contact forces mentioned on the list of choices that you've provided.